Death by boredom

Death by Boredom is an all too common problem among many players. You get frustrated playing along slowly and decide "It's probably ok to hold down .or , for a hundred or so turns while my power comes back." And then you get killed by a newt, robbed of your +7 Stormbringer/Grayswandir by a nymph, or have your pet dragon get confused from hunger and turn on you.

TIP: The more safe way to stand waiting for your HP to restore is to type "99s" or something like, in this case you stop to wait before something dangerous happens.